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Laizhou Dongsheng - Wafer Type Butterfly Valve
The range of industrial butterfly valves from Laizhou Dongsheng Valve Co., Ltd. includes lug type, flanged, and wafer type designs, all engineered for precision and reliability in flow control applications. With working pressures rated at 1.0/1.6 MPa, these valves operate efficiently within temperature ranges dictated by their elastomers, such as NBR and EPDM. They are compatible with a variety of piping standards, including DIN, BS, JIS, and ANSI, making them versatile for global applications. Designed for use with mediums like fresh water, sea water, oils, and certain food substances, they undergo rigorous testing per standards like DIN3230 and API598 to ensure performance and safety. Key technical features include a disc-type opening mechanism, lockable handle options, and removable seats, with ductile iron construction supporting temperatures between -5°C and +180°C. These valves offer low material consumption and compact dimensions, lending themselves to cost-effective production and efficient installation.
- Working pressure: 1.0/1.6Mpa
- Working temperature:
- NBR: 0℃~+80℃
- EPDM: -10℃~+120℃
- Face to face: DIN3202K1
- Flange connection according to DIN2501 PN10/16, BS4504 PN10/16,BS10 TABLE D/E, JIS2220 10K/16K, ANSI 125/150 etc.
- Testing: DIN3230, API598
- Medium: Fresh Water, Sea Water, Food Stuff, All kinds of Oil etc.
Dimensions:
- Size : DN 50 to DN 600
- Ends : ANSI150/PN10/PN16/JIS10K
Specifications:
- Type of valve: Butterfly valve wafer type
- Working temperature: EPDM -10℃-+120℃
- Face to Face: ISO5752 sequence
- Upper flange standard: ISO5211
- Pressure test conform: API598
- Medium: Fresh Water, Sea Water, Food Stuff, all kinds of oil etc.
Materials :
- Body: GGG-50 ductile iron body allows installation in ANSI 150 and DIN PN 10/16 pipe flanges.
- Disc: Stainless steel 304 (CF8).
- Seat: EPDM body seat
- Stem seal with O-ring EPDM
- Coating: Epoxy coated RAL 5005 – Ductile iron epoxy coated disc +/- 40 µ from DN125 to 300, ductile iron epoxy coated disc +/- 300 µ over for 1150

